تعريف principal office في الإنجليزية الإنجليزية القاموس.
A principal office is a major unit within an agency, usually responsible for a broad portion of the agency's authority and mission and headed by a senior political appointee, often an Assistant Secretary if the agency is part of the President's Cabinet
One of six organizational units of the Department responsible for administering programs that award discretionary grants and cooperative agreements: Office of Bilingual Education and Minority Languages Affairs (OBEMLA); Office of Educational Research and Improvement (OERI); Office of Elementary and Secondary Education (OESE); Office of Postsecondary Education (OPE); Office of Special Education and Rehabilitative Services (OSERS); and Office of Vocational and Adult Education (OVAE)